create-release-pr.yaml

name: Create Release PR

on:
  workflow_dispatch:
    inputs:
      bump_type:
        description: "Type of version bump to apply"
        required: true
        type: choice
        options:
          - patch
          - minor
          - major

concurrency:
  group: create-release-pr
  cancel-in-progress: false

jobs:
  create-release-pr:
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write

    steps:
      - name: Generate GitHub App token
        id: generate_token
        uses: actions/create-github-app-token@v2
        with:
          app-id: ${{ secrets.RELEASE_APP_ID }}
          private-key: ${{ secrets.RELEASE_APP_PRIVATE_KEY }}
          owner: sourcebot-dev
          repositories: sourcebot-helm-chart

      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          token: ${{ steps.generate_token.outputs.token }}

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '22'

      - name: Install semver
        run: npm install -g semver

      - name: Calculate new version
        id: calculate_version
        run: |
          CURRENT_VERSION=$(grep '^version:' charts/sourcebot/Chart.yaml | cut -d ' ' -f 2)
          echo "Current chart version: $CURRENT_VERSION"

          NEW_VERSION=$(semver -i ${{ inputs.bump_type }} $CURRENT_VERSION)
          echo "New chart version: $NEW_VERSION"

          echo "current_version=$CURRENT_VERSION" >> $GITHUB_OUTPUT
          echo "new_version=$NEW_VERSION" >> $GITHUB_OUTPUT

      - name: Check if version already exists
        run: |
          VERSION=${{ steps.calculate_version.outputs.new_version }}
          if grep -q "## \[$VERSION\]" CHANGELOG.md; then
            echo "Error: Version $VERSION already exists in CHANGELOG.md"
            exit 1
          fi

      - name: Update Chart.yaml version
        run: |
          sed -i "s/^version: .*/version: ${{ steps.calculate_version.outputs.new_version }}/" charts/sourcebot/Chart.yaml

      - name: Update CHANGELOG.md
        run: |
          VERSION=${{ steps.calculate_version.outputs.new_version }}
          DATE=$(date +%Y-%m-%d)

          # Insert the new version header after the [Unreleased] line
          sed -i "/## \[Unreleased\]/a\\
          \\
          ## [$VERSION] - $DATE" CHANGELOG.md

          echo "Updated CHANGELOG.md with version $VERSION"
          cat CHANGELOG.md | head -n 20

      - name: Install helm-docs
        run: |
          cd /tmp
          curl -L https://github.com/norwoodj/helm-docs/releases/download/v1.14.2/helm-docs_1.14.2_Linux_x86_64.tar.gz | tar xz
          sudo mv helm-docs /usr/local/bin/

      - name: Update README.md
        run: |
          cd charts/sourcebot
          helm-docs

      - name: Create Pull Request
        uses: peter-evans/create-pull-request@v8
        with:
          token: ${{ steps.generate_token.outputs.token }}
          commit-message: |
            chore: release chart v${{ steps.calculate_version.outputs.new_version }}

            - Bump chart version from ${{ steps.calculate_version.outputs.current_version }} to ${{ steps.calculate_version.outputs.new_version }}
            - Update CHANGELOG.md
            - Update generated documentation
          title: "chore: release chart v${{ steps.calculate_version.outputs.new_version }}"
          body: |
            ## Summary
            Release chart version ${{ steps.calculate_version.outputs.new_version }} (${{ inputs.bump_type }} bump).

            ## Changes
            - 📦 Bump chart version from ${{ steps.calculate_version.outputs.current_version }} to ${{ steps.calculate_version.outputs.new_version }}
            - 📝 Update CHANGELOG.md
            - 📝 Update generated documentation

            ---
            **Bump type**: `${{ inputs.bump_type }}`
          branch: release-chart-v${{ steps.calculate_version.outputs.new_version }}
          delete-branch: true
          reviewers: |
            brendan-kellam
            msukkari
          labels: |
            release